<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类">
        <el-cascader
          :props="categoryProps"
          v-model="queryCategoryIdList"
          @change="handleCategoryChange"
          style="width: 100%"
        />
      </el-form-item>
      <el-form-item label="规格名称" prop="specName">
        <el-input
            v-model="queryParams.specName"
            placeholder="请输入规格名称"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
        >删除</el-button>
      </el-col>
      <right-toolbar v-model:show-search="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table :data="specList" v-loading="loading" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55px" align="center"/>
      <el-table-column prop="categoryName" label="分类名称" width="120"/>
      <el-table-column prop="specName" label="规格名称" align="left" width="120"/>
      <el-table-column label="规格值" #default="scope" >
        <div
            v-for="(item1, index1) in scope.row.specValueList"
            :key="index1"
            style="padding: 5px; margin: 0;width: 100%;"
        >
          {{ item1.key }}:
          <span
              v-for="(item2, index2) in item1.valueList"
              :key="index2"
              class="div-atrr"
          >
            {{ item2 }}
          </span>
        </div>
      </el-table-column>
      <el-table-column prop="createTime" label="创建时间" width="160px"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width" width="160px">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--  分页条件组  -->
    <pagination
      v-show="total > 0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList"
    />

    <!--  新增与修改弹出层  -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="specRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类" prop="categoryIdList">
          <el-cascader
            :props="categoryProps"
            v-model="form.categoryIdList"
          />
        </el-form-item>
        <el-form-item label="规格名称" prop="specName">
          <el-input v-model="form.specName" placeholder="请输入规格名称"/>
        </el-form-item>
        <el-form-item label="规格值">
          <div
              v-for="(item1, index1) in specValueList"
              :key="index1"
              style="padding: 10px; margin: 0;"
          >
            {{ item1.key }}:
            <span
                v-for="(item2, index2) in item1.valueList"
                :key="index2"
                class="div-atrr"
            >
                {{ item2 }}
            </span>
            <el-button size="small" @click="removeAttr(index1)">删除</el-button>
            <br/>
          </div>
        </el-form-item>
        <el-form-item label="">
          <el-row v-if="isAdd">
            <el-col :span="10">
              <el-input v-model="specValue.key" placeholder="规格" style="width: 90%;"/>
            </el-col>
            <el-col :span="10">
              <el-input v-model="specValue.values" placeholder="规格值(如:白色,红色)" style="width: 90%;"/>
            </el-col>
            <el-col :span="4">
              <el-button size="default" @click="addSpecValue">添加</el-button>
            </el-col>
          </el-row>
          <el-row v-if="!isAdd">
            <el-col :span="4" align="left">
              <el-button size="default" @click="isAdd = true">添加新规格</el-button>
            </el-col>
          </el-row>
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确定</el-button>
          <el-button @click="cancel">取消</el-button>
        </div>
      </template>
    </el-dialog>

  </div>
</template>
<script setup>
import { listSpec, addSpec, getSpec, updateSpec, delSpec} from "@/api/product/productSpec.js";
import {getTreeSelect} from "@/api/product/category.js";
const {proxy} = getCurrentInstance();

//表格数据模型
const specList = ref([]);
//分页条数据模型
const total = ref(0);
//加载数据时显示的动效控制模型
const loading = ref(true);

//定义隐藏搜索控制模型
const showSearch = ref(true);

//新增与修改弹出层控制模型
const open = ref(false);
//新增与修改弹出层标题模型
const title = ref('');

//定义批量操作id列表模型
const ids = ref([]);
//定义单选控制模型
const single = ref(true);
//定义多选控制模型
const multiple = ref(true);



const data = reactive({
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    categoryId: null,
    specName: null
    },
  form: {},
  rules: {
    categoryIdList: [
        {required: true, message: '请选择分类', trigger: 'blue'}
    ],
    specName: [
        {required: true, message: '规格名称不能为空', trigger: 'blur'}
    ]
  }
});

const {queryParams,form,rules} = toRefs(data);

//编辑规格属性
const isAdd = ref(false)
const specValue = ref({key: '', values:''})
const specValueList = ref([])
function addSpecValue() {
  specValueList.value.push({
    key: specValue.value.key,
    valueList: specValue.value.values.split(',')
  })
  specValue.value = {}
  isAdd.value = false
}
function removeAttr(index) {
specValueList.value.splice(index, 1)
}

/** 查询商品规格列表 */
function getList() {
  loading.value = true;
  listSpec(queryParams.value).then(response => {
    specList.value = response.rows;

    specList.value.forEach(function (item) {
      item.specValueList = JSON.parse(item.specValue);
  })
      total.value = response.total;
      loading.value = false;
  });
}

//三级分类
const props = {
  lazy: true,
  value: 'id',
  label: 'name',
  leaf: 'leaf',
  async lazyLoad(node, resolve) {   // 加载数据的方法
    const {level} = node
    if (typeof node.value === 'undefined') node.value = 0
    const {code,data,message} = await getTreeSelect(
        node.value
    )
  //hasChildren属性，是element-ui的cascader组件内部属性，标识是否有子节点
    data.forEach(function(item){
      item.leaf = !item.hasChildren
    })
    resolve(data)  // 返回数据
  },
}

const categoryProps = ref(props)

//处理分类change事件
const queryCategoryIdList = ref([])
const handleCategoryChange = () => {
  if (queryCategoryIdList.value.length == 3) {
    queryParams.value.categoryId = queryCategoryIdList.value[2]

  }

}

/** 搜索按钮事件 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮事件 */
function resetQuery() {
  queryCategoryIdList.value = []
  proxy.resetForm('queryRef');
  queryParams.value.categoryId = null
  handleQuery();
}

/** 新增按钮事件 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = '添加商品规格';
  specValueList.value = [];

  specValueList.value = []
}

//表单重置
function reset() {
  form.value = {
    id: null,
    specName: null,
    specValue: null,
    categoryId: null,
    categoryIdList: []
  };
  proxy.resetForm('specRef');
}



//取消按钮
function cancel() {
  open.value = false;
  reset();
}

//多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value
  getSpec(_id).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = '修改商品规格';

    specValueList.value = JSON.parse(form.value.specValue)
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal.confirm('是否确认删除商品规格名称编号为"' + _ids + '"的数据项?').then(function () {
    return delSpec(_ids);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => {});
}



/** 提交按钮 */
function submitForm() {
  proxy.$refs['specRef'].validate(valid => {
    if (valid) {
      form.value.specValue = JSON.stringify(specValueList.value)
      //系统只需要三级分类id
      form.value.categoryId = form.value.categoryIdList[2]

      if (form.value.id != null) {
        updateSpec(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {

        addSpec(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}


getList()

</script>
<style scoped>
.div-atrr {
  padding: 5px 10px;
  margin: 0 10px;
  background-color: powderblue;
  border-radius: 10px;
}
</style>